(Tier Zero (Mermail) Best Deck)

Manual for dummies (like how I was 😂):

>Powers: Pops, return to hand, anti-hand traps, Omni negates, monster/spell/trap negates, bulk monster negates/return to hand/banish, infinite hand loops, immune to multiple pops, negates, hand traps, Resources reload,  even most of the floodgates.

>Note: you can add other Mermail equip spells for spells/traps, I added mizuchi for sky striker and the other monster effect, also you can add zealantis or whatever you like really, zealantis is good in spare monsters but I don't recommend it as you won't find that much use.

>Card usages:

Deepsea king=4 level 4 = 2 frog (detaching mermails activate their effects, too)

Poseidra= return hand, send to gy

Megalo= send to gy+ negate /summon"equip spell"

Abysstus= send gy+ add

Ice jade= send gy + token synchro 

Eria= send gy+ search

Dragoon= search

Abyssspike= search, send

Abyssrhine= send, summon level 7 "usually the deepsea or poseidra"

Minstrel= use early in the duel to cut nibiru or any other hand trap/ send and summon

Squad= free summon when sent

Diva= free summon

Infantry= pop

Prince= send, search, summon

Atristan = summon

Moray= unbrick

Abyss/Mermail equip = negate/shuffle

Virtue= bulk pop

Elemental lord: hand rip

Statue: 🗿 

Read what the other extra deck monsters do

But deep sea diva is good if you wanna summon statue, or shuffle the banished card by ministrel :P

Little combo to consider

Diva, prince, send dragoon, get minstrel and abyssrhine

Cut any hand trap with minstrel, use abyssrhine to get deepsea and get 2 toads

Get link 3 neptabyss at some stage as he can auto equip a negate, either your turn or your opponent's 

Abyssrhine can send and draw a card from hand during your opponent, use it with prince to resummon poseidra from gy, send infantry to pop +return 1 card to hand

You can add prince & infantry by frog from gy during opponent turn, also it triggers neptabyss requip effect

Locked by droll? Focus on special summoning, mostly shadow squad and abyssrhine.

Maliss? Lancea, hunter.

Negates? You have lots of extenders and pops

Blue eyes? Dweller and statue

Rhyzeal? Let them pop you, they'll need like 20 :P

Also you can search kaiju using charmer

Only thing that would actually be a problem is a dimension shifter, usually called by grave or lancea, hunter would do the job.

Also you can return kaiju to hand and resummon using poseidra, hmmm.

Usually a first turn win without dimension shifter being played.